WO1995020974A1

WO1995020974A1 - Monoclonal anbibodies which bind to tumor rejection antigen precursor mage-1, recombinant mage-1, and mage-1 derived immunogenic peptides

Info

Publication number: WO1995020974A1
Application number: PCT/US1995/000095
Authority: WO
Inventors: Yao-Tseng Chen; Elisabeth Stockert; Yachi Chen; Pilar Garin-Chesa; Wolfgang J. Rettig; Pierre Van Der Bruggen; Thierry Boon-Falleur; Lloyd J. Old
Original assignee: Ludwig Institute For Cancer Research; Memorial Sloan-Kettering Cancer Center
Priority date: 1994-02-01
Filing date: 1995-01-05
Publication date: 1995-08-10
Also published as: CA2182369A1; EP0752876A1; EP0752876A4; AU686314B2; ATE215831T1; ZA95786B; JPH09511389A; FI963033A0; ES2174931T3; DE69526339T2; AU1597995A; US5843448A; DE69526339D1; CN1145032A; EP0752876B1; FI963033L; US5541104A; NO963120D0; DK0752876T3; PT752876E

Abstract

The invention relates to monoclonal antibodies which specifically bind to the tumor rejection antigen precursor molecule MAGE-1, hybridomas which produce these monoclonal antibodies, and their use. Also described is a recombinant form of MAGE-1, peptides which are useful as immunogens, and immunogenic compositions containing the peptides and an adjuvant.

Description

MONOCLONAL ANTIBODIES WHICH BIND TO TUMOR REJECTION

ANTIGEN PRECURSOR MAGE-1, RECOMBINANT MAGE -1, AND MAGE-1 DERIVED IMMUNOGENIC PEPTIDES RELATED APPLICATION

This application is a continuation-in-part of Serial No. 037,230 filed March 26, 1993, which is itself a continuation- in-part of PCT Application PCT/US92/04354 filed on May 22, 1992 designating the United States, which is a continuation- in-part of Serial Number 807,043, filed December 12, 1991, which is a continuation-in-part of Serial Number 764,365, filed September 23, 1991, which is a continuation-in-part of Serial Number 728,838, filed July 9, 1991, which is a continuation-in-part of Serial Number 705,702, filed May 23, 1991, and now abandoned. FIELD OF THE INVENTION This invention relates in general to the field of immuno- genetics as applied to the study of oncology. More specifically, it relates to the study and analysis of mechanisms by which tumors are recognized by the organism's immune system such as through the presentation of so-called tumor rejection antigens, and the expression of what will be referred to herein as "tumor rejection antigen precursors" or "TRAPs". Most specifically, it refers to one such TRAP, i.e., MAGE-1, produced recombinantly, and monoclonal antibodies and antisera directed against MAGE-1, as well as their use. BACKGROUND AND PRIOR ART

The study of the recognition or lack of recognition of cancer cells by a host organism has proceeded in many different directions. Understanding of the field presumes some understanding of both basic immunology and oncology. Early research on mouse tumors revealed that these displayed molecules which led to rejection of tumor cells when transplanted into syngeneic animals. These molecules are "recognized" by T-cellε in the recipient animal, and provoke a cytolytic T-cell response with lysis of the transplanted cells. This evidence was first obtained with tumors induced in vitro by chemical carcinogens, such as methylcholanthrene. The antigens expressed by the tumors and which elicited the T- cell response were found to be different for each tumor. See Prehn, et al., J. Natl. Cane. Inst. 18: 769-778 (1957); Klein et al., Cancer Res. 20: 1561-1572 (1960); Gross, Cancer Res. 3: 326-333 (1943) , Basombrio, Cancer Res. 30: 2458-2462 (1970) for general teachings on inducing tumors with chemical carcinogens and differences in cell surface antigens. This class of antigens has come to be known as "tumor specific transplantation antigens" or "TSTAs". Following the observation of the presentation of such antigens when induced by chemical carcinogens, similar results were obtained when tumors were induced in vitro via ultraviolet radiation. See Kripke, J. Natl. Cane. Inst. 53: 333-1336 (1974) .

While T-cell mediated immune responses were observed for the types of tumor described supra. spontaneous tumors were thought to be generally non-immunogenic. These were therefore believed not to present antigens which provoked a response to the tumor in the tumor carrying subject. See Hewitt, et al., Brit. J. Cancer 33: 241-259 (1976).

The family of turn^' antigen presenting cell lines are immunogenic variants obtained by mutagenesis of mouse tumor cells or cell lines, as described by Boon et al., J. Exp. Med. 152: 1184-1193 (1980), the disclosure of which is incorporated by reference. To elaborate, turn^' antigens are obtained by mutating tumor cells which do not generate an immune response in syngeneic mice and will form tumors (i.e., "tum⁺" cells). When these turn^* cells are mutagenized, they are rejected by syngeneic mice, and fail to form tumors (thus "turn^"") . See Boon et al., Proc. Natl. Acad. Sci. USA 74: 272 (1977), the disclosure of which is incorporated by reference. Many tumor types have been shown to exhibit this phenomenon. See, e.g., Frost et al., Cancer Res. 43: 125 (1983).

It appears that tum^" variants fail to form progressive tumors because they elicit an immune rejection process. The evidence in favor of this hypothesis includes the ability of "turn^"" variants of tumors, i.e., those which do not normally form tumors, to do so in mice with immune systems suppressed by sublethal irradiation, Van Pel et al., Proc. Natl, Acad. Sci. USA 76: 5282-5285 (1979); and the observation that intraperitoneally injected tum^" cells of mastocytoma P815 multiply exponentially for 12-15 days, and then are eliminated in only a few days in the midst of an influx of lymphocytes and macrophages (Uyttenhove et al., J. Exp. Med. 152: 1175-

1183 (1980)). Further evidence includes the observation that mice acquire an immune memory which permits them to resist subsequent challenge to the same tum^" variant, even when immunosuppreεsive amounts of radiation are administered with the following challenge of cells (Boon et al., Proc. Natl, Acad. Sci. USA 74: 272-275 (1977); Van Pel et al., supra; Uyttenhove et al., supra) . Later research found that when spontaneous tumors were subjected to mutagenesis, immunogenic variants were produced which did generate a response. Indeed, these variants were able to elicit an immune protective response against the original tumor. See Van Pel et al., J. Exp. Med. 157: 1992-2001 (1983) . Thus, it has been shown that it is possible to elicit presentation of a so-called "tumor rejection antigen" in a tumor which is a target for a syngeneic rejection response. Similar results have been obtained when foreign genes have been transfected into spontaneous tumors. See Fearson et al., Cancer Res. 48: 2975- 1980 (1988) in this regard.

A class of antigens has been recognized which are presented on the surface of tumor cells and are recognized by cytotoxic T cells, leading to lysis. This class of antigens will be referred to as "tumor rejection antigens" or "TRAs" hereafter. TRAs may or may not elicit antibody responses. The extent to which these antigens have been studied, has been via cytolytic T cell characterization studies in vitro i.e., the study of the identification of the antigen by a particular cytolytic T cell ("CTL" hereafter) subset. The subset proliferates upon recognition of the presented tumor rejection antigen, and the cells presenting the antigen are lysed. Characterization studies have identified CTL clones which specifically lyse cells expressing the antigens. Examples of this work may be found in Levy et al., Adv. Cancer Res. 24: 1- 59 (1977); Boon et al., J. Exp. Med. 152: 1184-1193 (1980); Brunner et al., J. Immunol. 124: 1627-1634 (1980) ; Maryanski et al., Eur. J. Immunol. 124: 1627-1634 (1980); Maryanski et al., Eur. J. Immunol. 12: 406-412 (1982); Palladino et al., Cane. Res. 47: 5074-5079 (1987) . This type of analysis is required for other types of antigens recognized by CTLs, including major histocompatibility antigens, the male specific H-Y antigens, and a class of antigens, referred to as "turn-" antigens, and discussed herein. A tumor exemplary of the subject matter described supra is known as P815. See DePlaen et al., Proc. Natl. Acad. Sci. USA 85: 2274-2278 (1988); Szikora et al., EMBO J 9: 1041-1050 (1990), and Sibille et al., J. Exp. Med. 172: 35-45 (1990), the disclosures of which are incorporated by reference. The P815 tumor is a mastocytoma, induced in a DBA/2 mouse with methylcholanthrene and cultured as both an in vitro tumor and a cell line. The P815 line has generated many turn^' variants following mutagenesiε, including variants referred to as P91A

(DePlaen, supra) , 35B (Szikora, supra) , and P198 (Sibille, supra) . In contrast to tumor rejection antigens - and thiε iε a key diεtinction - the tum^" antigens are only present after the tumor cells are mutagenized. Tumor rejection antigens are present on cells of a given tumor without mutagenesis. Hence, with reference to the literature, a cell line can be turn^*, such as the line referred to as "PI", and can be provoked to produce tum^"variants. Since the tum^" phenotype differs from that of the parent cell line, one expects a difference in the DNA of tum^" cell lines as compared to their tum⁺ parental lines, and this difference can be exploited to locate the gene of interest in tum^" cellε. As a reεult, it waε found that geneε of tum^" variantε εuch as P91A, 35B and P198 differ from their normal alleles by point mutations in the coding regions of the gene. See Szikora and Sibille, supra, and Lurquin et al., Cell 58: 293-303 (1989) . This has proved not to be the case with the TRAs of this invention. These papers also demonstrated that peptides derived from the turn^' antigen are presented by the L^d molecule for recognition by CTLs. P91A is presented by L^d, P35 by D^d and P198 by K^d.

Prior patent applications PCT/US92/04354, U.S. Serial No. 807,043; 764,364; 728,838 and 707,702, all of which are incorporated by reference, describe inventions involving, inter alia, genes and other nucleic acid moleculeε which code for various TRAPs, which are in turn processed to tumor rejection antigen, or "TRAε".

The geneε are useful as a source for the isolated and purified tumor rejection antigen precursor and the TRA themselves, either of which can be used as an agent for treating the cancer for which the antigen is a "marker" , as well as in various diagnostic and surveillance approaches to oncology, discussed infra. It is known, for example, that tum^" cellε can be used to generate CTLs which lyse cells presenting different tum^" antigens as well as turn^* cells. See, e.g., Maryanski et al., Eur. J. Immunol 12: 401 (1982); and Van den Eynde et al., Modern Trends in Leukemia IX (June 1990) , the discloεures of which are incorporated by reference. The tumor rejection antigen precursor may be expressed in cells tranεfected by the gene, and then used to generate an immune response against a tumor of interest.

In the parallel case of human neoplasms, it has been observed that autologous mixed lymphocyte-tumor cell cultures ("MLTC" hereafter) frequently generate responder lymphocytes which lyse autologous tumor cells and do not lyse natural killer targets, autologous EBV-transformed B cellε, or autologous fibroblasts (see Anichini et al., Immunol. Today 8: 385-389 (1987)) . This responεe has been particularly well studied for melanomas, and MLTC have been carried out either with peripheral blood cells or with tumor infiltrating lymphocytes. Examples of the literature in thiε area including Knuth et al., Proc. Natl. Acad. Sci. USA 86: 2804- 2802 (1984) ; Mukherji et al., J. Exp. Med. 158: 240 (1983) ; Herin et all, Int. J. Cane. 39: 390-396 (1987); Topalian et al, J. Clin. Oncol 6: 839-853 (1988). Stable cytotoxic T cell cloneε ("CTLs" hereafter) have been derived from MLTC responder cellε, and these clones are specific for the tumor cellε. See Mukherji et al., εup_ra, Herin et all, supra, Knuth et al., supra. The antigens recognized on tumor cellε by theεe autologouε CTLs do not appear to represent a cultural artifact, since they are found on tumor cells in vivo. Topalian et al., supra; Degiovanni et al., Eur. J. Immunol. 20: 1865-1868 (1990) . These observations, coupled with the techniques used herein to isolate the genes for specific murine tumor rejection antigen precursors, have led to the isolation of nucleic acid sequences coding for tumor rejection antigen precursors of TRAs presented on human tumors. It is now possible to isolate the nucleic acid sequenceε which code for tumor rejection antigen precurεors, including, but not being limited to those most characteristic of a particular tumor, with ramifications that are described infra. Additional work has focused upon the presentation of TRAs by the clasε of molecules known as human leukocyte antigens, or "HLAs". This work has resulted in several unexpected discoverieε regarding the field. Specifically in U.S. patent application Serial Number 938,334, the diεcloεure of which is incorporated by reference, nonapeptides are taught which are presented by the HLA-A1 molecule. The reference teaches that given the known specificity of particular peptides for particular HLA molecules, one should expect a particular peptide to bind one HLA molecule, but not others. This is important, because different individuals posεeεs different HLA phenotypes. As a result, while identification of a particular peptide as being a partner for a specific HLA molecule has diagnostic and therapeutic ramifications, these are only relevant for individuals with that particular HLA phenotype. There is a need for further work in the area, because cellular abnormalities are not restricted to one particular HLA phenotype, and targeted therapy requires some knowledge of the phenotype of the abnormal cells at issue.

In U.S. Patent Application Serial Number 008,446, filed January 22, 1993 and incorporated by reference, the fact that the MAGE-1 expression product is proceεεed to a εecond TRA is discloεed. Thiε εecond TRA iε presented by HLA-C-clone-10 molecules. The discloεure εhowε that a given TRAP can yield a plurality of TRAε.

In U.S. Patent Application Serial Number 994,928, filed December 22, 1992, and incorporated by reference herein, tyroεinaεe iε described as a tumor rejection antigen precursor. This reference discloεeε that a molecule which iε produced by some normal cells (e.g., melanocytes) , iε proceεsed in tumor cellε to yield a tumor rejection antigen that is presented by HLA-A2 molecules. The prior applications cited supra discuεεed antibodies against tumor rejection antigen precursorε generally. The preεent inveεtigatorε have utilized the iεolated nucleic acid molecule coding for MAGE-1 to produce a recombinant MAGE-1 protein, and peptideε derived therefrom. These have been used to produce polyclonal and monoclonal antibodies which specifically bind to MAGE-1. These antibodies, and their use, constitute the invention described and claimed herein. BRIEF DESCRIPTION OF THE FIGURES

Figure 1 shows, schematically, the MAGE-1 gene, oligopeptides derived from the recombinant MAGE-1 protein, and comparison with corresponding εequenceε in MAGE-2 and MAGE-3 deduced amino acid sequenceε.

Figure 2A εhowε silver stained SDS-polyacryla ide gels of affinity purified, MAGE-1 recombinant protein. Figure 2B presents immunoblotting work where recombinant MAGE-1 protein was used against rabbit antisera derived from immunization with three peptides (SEQ ID NOS: 2, 3 and 4). Blotting was at 1:1000 dilution. As a, control, recombinant mouse p53 was used. Figure 3A shows the reactivity pattern of mAb MA 454 against six melanoma lines. Figure 3B εhows the resultε obtained uεing rabbit polyclonal antisera against the same lines. Figure 3C shows resultε obtained with a MAGE-1 transfected cell line (MZ2-MEL 2.2-ET.l), and itε parent (MZ2- MEL 2.2) .

Figure 4 presents immunoblot analysis using the antibodieε against tiεεue lyεates.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Many different "MAGE" geneε have been identified, as will be seen from the applications and referenceε cited supra. The MAGE-l gene is at isεue on the preεent case, and iε the only one diεcusεed hereafter. For convenience, it iε presented herein as SEQ ID NO: 1.

"MAGE" aε uεed herein referε to a nucleic acid sequence isolated from human cells.

When "TRAP" or "TRAs" are discusεed herein aε being εpecific to a tumor type, thiε means that the molecule under consideration is associated with that type of tumor, although not necessarily to the exclusion of other tumor types. Example 1

The cell line MZ2-MEL 3.1 described in, e.g., Van den Eynde et al., Int. J. Cancer 44: 634-640 (1989) and in the parent application cited supra, previously observed to express MAGE-l, was used as a source of total RNA. The total RNA was extracted from the cells, and was then subjected to reverse transcription/polymeraεe chain reaction, using the primers CH08 and CH09, as described by Van der Bruggen et al., Science 254: 1643-1647 (Dec. 13, 1991), the disclosure of which is incorporated by reference. This paper describeε the "RT-PCR" technique, aε doeε the Brasseur et al., Int. J. Cancer 52: 839-841 (1992) . It must be understood, however, that the sequence of MAGE-l is known to the art, and other primers could be used besides CH08 and CH09.

Once the RT-PCR protocols were completed, the products were cloned directly intp plasmid pT7 Blue (Novagen, Madison WI) , following manufacturer's inεtructions which conεtituted well known techniques. Following the cloning, the recombinant plasmid DNA was treated with reεtriction endonucleaεeε to generate fragmentε which included fragmentε containing the MAGE-l gene. See, e.g. Van der Bruggen et al, εupra.

The appropriate cDNA inεert was subcloned unidirectionally, into plaεmidε pQE9, pQElO and pQEll, using BamHI and Hindlll cloning siteε in pT7 Blue. The plasmids were transfected into E. coli, and recombinant protein production waε induced via IPTG, aε the host plaεmid contains the lac operon. Thiε yielded a fuεion protein containing the MAGE-l polypeptide sequence, which could be purified via Ni²⁺ ion affinity chromatography. The DNA sequence of the recombinant clone waε obtained, and waε confirmed to encode 163 amino acidε which correspond to deduced amino acidε 57-219 of predicted MAGE-l amino sequence, plus 30 residues from the plaεmid itself. Figure 1 shows thiε. The expected molecular mass is about 20-22 kDa. When clones in pQElO were studied, indeed, a recombinant protein of about 20 kDa was produced following IPTG induction. Other minor protein εpecieε of 70 kDa, 43 kDa, 17 kDa and 15 kDa were also found, as iε εeen in figure 2A. Example 2 The following deεcribeε procedures used to produce antibodies to MAGE-l. Based upon the predicted MAGE-l amino acid sequence, three oligopeptides were prepared:

lie Asn Phe Thr Arg Gin Arg Gin Pro Ser Glu Gly Ser Ser (SEQ ID NO: 2)

Leu Phe Arg Ala Val lie Thr Lyε Lyε Val Ala Asp

(SEQ ID NO: 3)

Aεp Val Lyε Glu Ala Asp Pro Thr Gly His Ser Tyr

(SEQ ID NO: 4)

Rabbits were immunized with the peptides, and were then treated to collect antiserum. Antiεera prepared againεt these three peptides were then used with E. coli produced, recombinant MAGE-l protein, in immunoblotting experiments. The resultε, εet forth in figure 2B, εhow that only antiεerum raiεed againεt the firεt of theεe peptideε, i.e., SEQ ID NO: 2 reacted εtrongly. The fact that additional protein εpecieε that copurified with the 20 kDa fuεion protein alεo εhowed reactivity, suggests that these are aggregates of the fusion protein. The peptide used correspondε to deduced amino acids 68-81 of the MAGE-l of the predicted MAGE-l protein.

When immunoblotting was carried out using lysates of melanoma cell line MZ2-MEL 3.1, no detectable MAGE protein was found.

Example 3

Monoclonal antibodies were then prepared. Purified recombinant protein, produced as deεcribed supra, was used to immunize BALB/C mice. Hybridomas were generated and cloned. The protocol used waε that deεcribed by Dippold et al., Proc. Natl. Acad. Sci. USA 77: 6114-6118 (1980), the disclosure of which is incorporated by reference. The key difference, of course, waε the immunogen used for immunization.

Once hybridomas were generated, their supernatants were screened using a standard, solid phase ELISA on microtiter plates, using the immunizing fusion protein as target antigen.

Five clones were found to be reactive. They all also showed moderate to strong reactivity in immunoblots.

Aε a control, mouεe p53 protein, expreεεed in the same plasmid vector, was alεo teεted. No reactivity waε seen. These results are summarized in Table 1 which follows:

TABLE l. Reactivity of mouse anti-recombinant MAGE-l, mAbs toward recombinant MAGE-l protein and control p53 protein

*ELISA titer using hybridoma supernatants: -, <1:16; +, 1:64; ++, 1:256. #Immunoblot εignal intenεity: -, negative; +, weak; ++, moderate; +++, strong.

Example 4

The mAbs described supra were then tested against lysates of melanoma cell lines. The cell lines tested, i.e., MZ2-MEL 3.1, MZ2-MEL 2.2, and SK-MEL-187, are all well known. MZ2-MEL 2.2 is a MAGE-l losε variant derived from MAGE-l positive parental MZ2-MEL 3.1 by CTL selection (van der Bruggen et al., Int. J. Cancer 44: 634-640 (1989)) . These cells had been "typed" by RT-PCR as being MAGE-l⁺2⁺3⁺(MZ2-MEL 3..1) , MAGE-l"2⁺3⁺ (MZ2-MEL 2.2) , and MAGE 1^"2^"3^_ (SK MEL-187) . The lysates were prepared by homogenizing the cells in Nonidet P40 (NP-40) buffer (1% NP-40, 50 mM Triε-HCl, pH 8.0, 150 mM NaCl) . The results are εhown in figure 3A.

Monoclonal antibody MA 454 reacted with a 46 kDa protein preεent in MZ2-MEL 3.1 lyεate, but not in lyεateε of either of the other two cell lines. When three additional melanoma lines were tested, only those which were typed aε being MAGE-l poεitive reacted with the mAb. Expreεεion of MAGE-2 or MAGE-3 was irrelevant.

The polyclonal antiserum described supra, was alεo teεted againεt theεe lyεateε. Reεults are shown in figure 3B. It was poεitive for MZ2-MEL 3.1, and for MAGE-l tranεfected cell line MZ2-MEL 2.2-ET.l, but waε negative for parental line MZ2- MEL 2.2. Example 5

Lyεateε were prepared from liver, kidney and teεtiε tiεεue, and from four melanoma cell lineε including one MAGE- l⁺2⁺3⁺ line, two MAGE-l^"2⁺3⁺, and one MAGE-1^"2^"3^" lineε. The lysates were prepared as deεcribed supra. When immunoblotting was carried out, testiε lyεateε were poεitive with mAb 454, aε were MAGE-l poεitive melanomas. No other lysates were positive which is in complete agreement with mRNA expression data.

The same experiments were carried out using polyclonal antiserum, and the results paralleled those for the monoclonal antibodies. Figure 4 presentε theεe reεultε. The foregoing experimentε deεcribe the production of monoclonal antibodieε which specifically bind to a tumor rejection antigen precursor TRAP. The studies show binding both to the "wild type" MAGE-l molecule, and the recombinant form, but not to either of MAGE-2 or MAGE-3. A particularly preferred εpecieε of MAGE-l binding mAb, i.e., MA454, haε been depoεited at the American Type Culture Collection under Acceεεion Number HB 11540.

The invention thuε relates to MAGE-l specific monoclonal antibodieε and the hybridomas which produce them. The mAbs were found to be useful in determining expression of MAGE-l in cell lysateε. Specifically, the mAbε can be added, e.g., in labelled form, bound to a εolid phaεe, or otherwise treated to increase the senεitivity of MAGE-l detection. Any of the εtandard typeε of immunoaεεayε, including ELISAε, RIAs, competitive assays, agglutination assays, and all others are encompassed with respect to the way the mAbs can be used. "Cell lysate" as used herein referε not only to a εample which iε expressly lysed, but also to those samples which contain cellε which have been lyεed in vivo, or any εample which containε material normally internal to the cellε. The detection of MAGE-l expresεion product iε uεeful, e.g., in diagnosing or monitoring the presence or progreεs of a cancer.

The isolated, recombinant MAGE-l protein is also a feature of this invention. This molecule has a molecular weight of about 20-22 kDa as determined by SDS-PAGE, and is useful as an immunogen as are the peptides of SEQ ID NOS: 2, 3 and 4, εhown by the examples to be immunogenic.

Preferably, theεe are uεed in combination with a suitable adjuvant. The isolated form of the molecule obtained via non- recombinant means has a molecular weight of about 43 kd as determined by SDS-PAGE, and is useful in the same ways as is the recombinant protein. The recombinant form may consiεt of only amino acidε 57-219 of the εequence of MAGE-l, aε εhown supra. Also a part of the invention is the full length isolated, recombinant MAGE-l protein, having a molecular weight of about 34.3kd aε determined by SDS-PAGE, and consisting of the amino acid sequence coded for by nucleotides 3931-4761 of SEQ ID NO: 1.

Other featureε of the invention will be clear to the artisan and need not be repeated here.

The terms and expressions which have been employed are used as terms of description and not of limitation, and there is no intention in the use of such terms and expreεεions of excluding any equivalents of the features εhown and described or portions thereof, it being recognized that variouε modificationε are possible within the scope of the invention. SEQUENCE LISTING

(1) GENERAL INFORMATION:

(i) APPLICANTS: Chen, Yao-Tseng; Stockert, Elisabeth; Chen, Yachi; Garin-Chesa, Pilar; Rettig, Wolfgang J. ; van der Bruggen, Pierre; Boon-Falleur, Thierry; Old, Lloyd J.

(ii) TITLE OF INVENTION: MONOCLONAL ANTIBODIES WHICH BIND TO TUMOR REJECTION ANTIGEN PRECURSOR MAGE-l, RECOMBINANT MAGE-l, AND MAGE-l DERIVED IMMUNOGENIC PEPTIDES

(iii) NUMBER OF SEQUENCES: 4

(iv) CORRESPONDENCE ADDRESS:

(A) ADDRESSEE: Felfe & Lynch

(B) STREET: 805 Third Avenue

(C) CITY: New York City

(D) STATE: New York (F) ZIP: 10022

(v) COMPUTER READABLE FORM:

(A) MEDIUM TYPE: Diskette, 5.25 inch, 360 kb storage

(B) COMPUTER: IBM

(C) OPERATING SYSTEM: PC-DOS

(D) SOFTWARE: Wordperfect

(vi) CURRENT APPLICATION DATA:

(A) APPLICATION NUMBER: 08/190,411

(B) FILING DATE: 01-FEBRUARY-1994

(C) CLASSIFICATION: 424 (vii) PRIOR APPLICATION DATA:

(A) APPLICATION NUMBER: 037,230

(B) FILING DATE: 26-MARCH-1993

(vii) PRIOR APPLICATION DATA:

(A) APPLICATION NUMBER: PCT/US92/04354

(B) FILING DATE: 22-MAY-1992

(viii) PRIOR APPLICATION DATA:

(A) APPLICATION NUMBER: 07/807,043

(B) FILING DATE: 12-DECEMBER-1991

(ix) PRIOR APPLICATION DATA:

(A) APPLICATION NUMBER: 07/764,364

(B) FILING DATE: 23-SEPTEMBER-1991

(x) PRIOR APPLICATION DATA:

(A) APPLICATION NUMBER: 07/728,838 (b) FILING DATE: 9-JULY-1991

(xi) PRIOR APPLICATION DATA:

(A) APPLICATION NUMBER: 07/705,702

(B) FILING DATE: 23-MAY-1991

(xii) ATTORNEY/AGENT INFORMATION:

(A) NAME: Hanεon, Norman D.

(B) REGISTRATION NUMBER: 30,946

(C) REFERENCE/DOCKET NUMBER: LUD 5354

(xiii) TELECOMMUNICATION INFORMATION:

(A) TELEPHONE: (212) 688-9200

(B) TELEFAX: (212) 838-3884 (2) INFORMATION FOR SEQUENCE ID NO: 1: (i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 5674 base pairs

(B) TYPE: nucleic acid

(C) STRANDEDNESS: single

(D) TOPOLOGY: linear

(ii) MOLECULE TYPE: genomic DNA (ix) FEATURE:

(A) NAME/KEY: MAGE-l gene (xi) SEQUENCE DESCRIPTION: SEQ ID NO: 1:

CCCGGGGCAC CACTGGCATC CCTCCCCCTA CCACCCCCAA TCCCTCCCTT 50 TACGCCACCC ATCCAAACAT CTTCACGCTC ACCCCCAGCC CAAGCCAGGC 100 AGAATCCGGT TCCACCCCTG CTCTCAACCC AGGGAAGCCC AGGTGCCCAG 150

ATGTGACGCC ACTGACTTGA GCATTAGTGG TTAGAGAGAA GCGAGGTTTT 200

CGGTCTGAGG GGCGGCTTGA GATCGGTGGA GGGAAGCGGG CCCAGCTCTG 250 TAAGGAGGCA AGGTGACATG CTGAGGGAGG ACTGAGGACC CACTTACCCC 300 AGATAGAGGA CCCCAAATAA TCCCTTCATG CCAGTCCTGG ACCATCTGGT 350

GGTGGACTTC TCAGGCTGGG CCACCCCCAG CCCCCTTGCT GCTTAAACCA 400 CTGGGGACTC GAAGTCAGAG CTCCGTGTGA TCAGGGAAGG GCTGCTTAGG 450 AGAGGGCAGC GTCCAGGCTC TGCCAGACAT CATGCTCAGG ATTCTCAAGG 500 AGGGCTGAGG GTCCCTAAGA CCCCACTCCC GTGACCCAAC CCCCACTCCA 550 ATGCTCACTC CCGTGACCCA ACCCCCTCTT CATTGTCATT CCAACCCCCA 600 CCCCACATCC CCCACCCCAT CCCTCAACCC TGATGCCCAT CCGCCCAGCC 650 ATTCCACCCT CACCCCCACC CCCACCCCCA CGCCCACTCC CACCCCCACC 700 CAGGCAGGAT CCGGTTCCCG CCAGGAAACA TCCGGGTGCC CGGATGTGAC 750 GCCACTGACT TGCGCATTGT GGGGCAGAGA GAAGCGAGGT TTCCATTCTG 800 AGGGACGGCG TAGAGTTCGG CCGAAGGAAC CTGACCCAGG CTCTGTGAGG 850 AGGCAAGGTG AGAGGCTGAG GGAGGACTGA GGACCCCGCC ACTCCAAATA 900 GAGAGCCCCA AATATTCCAG CCCCGCCCTT GCTGCCAGCC CTGGCCCACC 950

CGCGGGAAGA CGTCTCAGCC TGGGCTGCCC CCAGACCCCT GCTCCAAAAG 1000

CCTTGAGAGA CACCAGGTTC TTCTCCCCAA GCTCTGGAAT CAGAGGTTGC 1050

TGTGACCAGG GCAGGACTGG TTAGGAGAGG GCAGGGCACA GGCTCTGCCA 1100

GGCATCAAGA TCAGCACCCA AGAGGGAGGG CTGTGGGCCC CCAAGACTGC 1150

ACTCCAATCC CCACTCCCAC CCCATTCGCA TTCCCATTCC CCACCCAACC 1200

CCCATCTCCT CAGCTACACC TCCACCCCCA TCCCTACTCC TACTCCGTCA 1250 CCTGACCACC ACCCTCCAGC CCCAGCACCA GCCCCAACCC TTCTGCCACC 1300

TCACCCTCAC TGCCCCCAAC CCCACCCTCA TCTCTCTCAT GTGCCCCACT 1350

CCCATCGCCT CCCCCATTCT GGCAGAATCC GGTTTGCCCC TGCTCTCAAC 1400

CCAGGGAAGC CCTGGTAGGC CCGATGTGAA ACCACTGACT TGAACCTCAC 1450

AGATCTGAGA GAAGCCAGGT TCATTTAATG GTTCTGAGGG GCGGCTTGAG 1500

ATCCACTGAG GGGAGTGGTT TTAGGCTCTG TGAGGAGGCA AGGTGAGATG 1550

CTGAGGGAGG ACTGAGGAGG CACACACCCC AGGTAGATGG CCCCAAAATG 1600

ATCCAGTACC ACCCCTGCTG CCAGCCCTGG ACCACCCGGC CAGGACAGAT 1650

GTCTCAGCTG GACCACCCCC CGTCCCGTCC CACTGCCACT TAACCCACAG 1700

GGCAATCTGT AGTCATAGCT TATGTGACCG GGGCAGGGTT GGTCAGGAGA 1750

GGCAGGGCCC AGGCATCAAG GTCCAGCATC CGCCCGGCAT TAGGGTCAGG 1800

ACCCTGGGAG GGAACTGAGG GTTCCCCACC CACACCTGTC TCCTCATCTC 1850

CACCGCCACC CCACTCACAT TCCCATACCT ACCCCCTACC CCCAACCTCA 1900

TCTTGTCAGA ATCCCTGCTG TCAACCCACG GAAGCCACGG GAATGGCGGC 1950

CAGGCACTCG GATCTTGACG TCCCCATCCA GGGTCTGATG GAGGGAAGGG 2000

GCTTGAACAG GGCCTCAGGG GAGCAGAGGG AGGGCCCTAC TGCGAGATGA 2050

GGGAGGCCTC AGAGGACCCA GCACCCTAGG ACACCGCACC CCTGTCTGAG 2100

ACTGAGGCTG CCACTTCTGG CCTCAAGAAT CAGAACGATG GGGACTCAGA 2150

TTGCATGGGG GTGGGACCCA GGCCTGCAAG GCTTACGCGG AGGAAGAGGA 2200

GGGAGGACTC AGGGGACCTT GGAATCCAGA TCAGTGTGGA CCTCGGCCCT 2250

GAGAGGTCCA GGGCACGGTG GCCACATATG GCCCATATTT CCTGCATCTT 2300

TGAGGTGACA GGACAGAGCT GTGGTCTGAG AAGTGGGGCC TCAGGTCAAC 2350

AGAGGGAGGA GTTCCAGGAT CCATATGGCC CAAGATGTGC CCCCTTCATG 2400

AGGACTGGGG ATATCCCCGG CTCAGAAAGA AGGGACTCCA CACAGTCTGG 2450

CTGTCCCCTT TTAGTAGCTC TAGGGGGACC AGATCAGGGA TGGCGGTATG 2500

TTCCATTCTC ACTTGTACCA CAGGCAGGAA GTTGGGGGGC CCTCAGGGAG 2550

ATGGGGTCTT GGGGTAAAGG GGGGATGTCT ACTCATGTCA GGGAATTGGG 2600

GGTTGAGGAA GCACAGGCGC TGGCAGGAAT AAAGATGAGT GAGACAGACA 2650

AGGCTATTGG AATCCACACC CCAGAACCAA AGGGGTCAGC CCTGGACACC 2700

TCACCCAGGA TGTGGCTTCT TTTTCACTCC TGTTTCCAGA TCTGGGGCAG 2750

GTGAGGACCT CATTCTCAGA GGGTGACTCA GGTCAACGTA GGGACCCCCA 2800

TCTGGTCTAA AGACAGAGCG GTCCCAGGAT CTGCCATGCG TTCGGGTGAG 2850

GAACATGAGG GAGGACTGAG GGTACCCCAG GACCAGAACA CTGAGGGAGA 2900

CTGCACAGAA ATCAGCCCTG CCCCTGCTGT CACCCCAGAG AGCATGGGCT 2950

GGGCCGTCTG CCGAGGTCCT TCCGTTATCC TGGGATCATT GATGTCAGGG 3000

ACGGGGAGGC CTTGGTCTGA GAAGGCTGCG CTCAGGTCAG TAGAGGGAGC 3050

GTCCCAGGCC CTGCCAGGAG TCAAGGTGAG GACCAAGCGG GCACCTCACC 3100 CAGGACACAT TAATTCCAAT GAATTTTGAT ATCTCTTGCT GCCCTTCCCC 3150 AAGGACCTAG GCACGTGTGG CCAGATGTTT GTCCCCTCCT GTCCTTCCAT 3200 TCCTTATCAT GGATGTGAAC TCTTGATTTG GATTTCTCAG ACCAGCAAAA 3250 GGGCAGGATC CAGGCCCTGC CAGGAAAAAT ATAAGGGCCC TGCGTGAGAA 3300 CAGAGGGGGT CATCCACTGC ATGAGAGTGG GGATGTCACA GAGTCCAGCC 3350 CACCCTCCTG GTAGCACTGA GAAGCCAGGG CTGTGCTTGC GGTCTGCACC 3400 CTGAGGGCCC GTGGATTCCT CTTCCTGGAG CTCCAGGAAC CAGGCAGTGA 3450 GGCCTTGGTC TGAGACAGTA TCCTCAGGTC ACAGAGCAGA GGATGCACAG 3500 GGTGTGCCAG CAGTGAATGT TTGCCCTGAA TGCACACCAA GGGCCCCACC 3550 TGCCACAGGA CACATAGGAC TCCACAGAGT CTGGCCTCAC CTCCCTACTG 3600 TCAGTCCTGT AGAATCGACC TCTGCTGGCC GGCTGTACCC TGAGTACCCT 3650 CTCACTTCCT CCTTCAGGTT TTCAGGGGAC AGGCCAACCC AGAGGACAGG 3700 ATTCCCTGGA GGCCACAGAG GAGCACCAAG GAGAAGATCT GTAAGTAGGC 3750 CTTTGTTAGA GTCTCCAAGG TTCAGTTCTC AGCTGAGGCC TCTCACACAC 3800 TCCCTCTCTC CCCAGGCCTG TGGGTCTTCA TTGCCCAGCT CCTGCCCACA 3850 CTCCTGCCTG CTGCCCTGAC GAGAGTCATC 3880

ATG TCT CTT GAG CAG AGG AGT CTG CAC TGC AAG CCT GAG GAA 3922 GCC CTT GAG GCC CAA CAA GAG GCC CTG GGC CTG GTG TGT GTG 3964 CAG GCT GCC ACC TCC TCC TCC TCT CCT CTG GTC CTG GGC ACC 4006 CTG GAG GAG GTG CCC ACT GCT GGG TCA ACA GAT CCT CCC CAG 4048 AGT CCT CAG GGA GCC TCC GCC TTT CCC ACT ACC ATC AAC TTC 4090 ACT CGA CAG AGG CAA CCC AGT GAG GGT TCC AGC AGC CGT GAA 4132 GAG GAG GGG CCA AGC ACC TCT TGT ATC CTG GAG TCC TTG TTC 4174 CGA GCA GTA ATC ACT AAG AAG GTG GCT GAT TTG GTT GGT TTT 4216 CTG CTC CTC AAA TAT CGA GCC AGG GAG CCA GTC ACA AAG GCA 4258 GAA ATG CTG GAG AGT GTC ATC AAA AAT TAC AAG CAC TGT TTT 4300 CCT GAG ATC TTC GGC AAA GCC TCT GAG TCC TTG CAG CTG GTC 4342 TTT GGC ATT GAC GTG AAG GAA GCA GAC CCC ACC GGC CAC TCC 4384 TAT GTC CTT GTC ACC TGC CTA GGT- CTC TCC TAT GAT GGC CTG 4426 CTG GGT GAT AAT CAG ATC ATG CCC AAG ACA GGC TTC CTG ATA 4468 ATT GTC CTG GTC ATG ATT GCA ATG GAG GGC GGC CAT GCT CCT 4510 GAG GAG GAA ATC TGG GAG GAG CTG AGT GTG ATG GAG GTG TAT 4552 GAT GGG AGG GAG CAC AGT GCC TAT GGG GAG CCC AGG AAG CTG 4594 CTC ACC CAA GAT TTG GTG CAG GAA AAG TAC CTG GAG TAC GGC 4636 AGG TGC CGG ACA GTG ATC CCG CAC GCT ATG AGT TCC TGT GGG 4678 GTC CAA GGG CCC TCG CTG AAA CCA GCT ATG TGA 4711

AAGTCCTTGA GTATGTGATC AAGGTCAGTG CAAGAGTTC 4750 GCTTTTTCTT CCCATCCCTG CGTGAAGCAG CTTTGAGAGA GGAGGAAGAG 4800

GGAGTCTGAG CATGAGTTGC AGCCAAGGCC AGTGGGAGGG GGACTGGGCC 4850

AGTGCACCTT CCAGGGCCGC GTCCAGCAGC TTCCCCTGCC TCGTGTGACA 4900

TGAGGCCCAT TCTTCACTCT GAAGAGAGCG GTCAGTGTTC TCAGTAGTAG 4950

GTTTCTGTTC TATTGGGTGA CTTGGAGATT TATCTTTGTT CTCTTTTGGA 5000

ATTGTTCAAA TGTTTTTTTT TAAGGGATGG TTGAATGAAC TTCAGCATCC 5050

AAGTTTATGA ATGACAGCAG TCACACAGTT CTGTGTATAT AGTTTAAGGG 5100

TAAGAGTCTT GTGTTTTATT CAGATTGGGA AATCCATTCT ATTTTGTGAA 5150

TTGGGATAAT AACAGCAGTG GAATAAGTAC TTAGAAATGT GAAAAATGAG 5200

CAGTAAAATA GATGAGATAA AGAACTAAAG AAATTAAGAG ATAGTCAATT 5250

CTTGCCTTAT ACCTCAGTCT ATTCTGTAAA ATTTTTAAAG ATATATGCAT 5300

ACCTGGATTT CCTTGGCTTC TTTGAGAATG TAAGAGAAAT TAAATCTGAA 5350

TAAAGAATTC TTCCTGTTCA CTGGCTCTTT TCTTCTCCAT GCACTGAGCA 5400

TCTGCTTTTT GGAAGGCCCT GGGTTAGTAG TGGAGATGCT AAGGTAAGCC 5450

AGACTCATAC CCACCCATAG GGTCGTAGAG TCTAGGAGCT GCAGTCACGT 5500

AATCGAGGTG GCAAGATGTC CTCTAAAGAT GTAGGGAAAA GTGAGAGAGG 5550

GGTGAGGGTG TGGGGCTCCG GGTGAGAGTG GTGGAGTGTC AATGCCCTGA 5600

GCTGGGGCAT TTTGGGCTTT GGGAAACTGC AGTTCCTTCT GGGGGAGCTG 5650

GCTGGGGCAT TTTGGGCTTT GGGAAACTGC AGTTCCTTCT GGGGGAGCTG 5700

ATTGTAATGA TCTTGGGTGG ATCC 5724

(2) INFORMATION FOR SEQUENCE ID NO: 2: (i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 14 amino acid residueε

(B) TYPE: amino acid (D) TOPOLOGY: linear

(ii) MOLECULE TYPE: protein

(xi) SEQUENCE DESCRIPTION: SEQ ID NO: 2:

lie Aεn Phe Thr Arg Gin Arg Gin Pro Ser Glu Gly Ser Ser

5 10

(2) INFORMATION FOR SEQUENCE ID NO: 3: (i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 12 amino acid residues

(B) TYPE: amino acid (D) TOPOLOGY: linear

(ii) MOLECULE TYPE: protein

(xi) SEQUENCE DESCRIPTION: SEQ ID NO: 3:

Leu Phe Arg Ala Val lie Thr Lys Lys Val Ala Asp

5 10

(2) INFORMATION FOR SEQUENCE ID NO: 4: (i) SEQUENCE CHARACTERISTICS:

(A) LENGTH: 12 amino acid residueε

(B) TYPE: amino acid (D) TOPOLOGY: linear

(ii) MOLECULE TYPE: protein

(xi) SEQUENCE DESCRIPTION: SEQ ID NO: 4:

Asp Val Lys Glu Ala Asp Pro Thr Gly Hiε Ser Tyr

5 10

Claims

We claim:

1. Monoclonal antibody which specifically binds to tumor rejection antigen precursor MAGE-l.

2. The monoclonal antibody of claim 1, deεignated MA454.

3. Hybridoma cell line which produceε the monoclonal antibody of claim 1.

4. The hybridoma cell line of claim 3, wherein εaid monoclonal antibody is MA454.

5. Method for determining tumor rejection antigen precursor MAGE-l in a sample, comprising contacting said sample with the monoclonal antibody of claim 1 and determining binding of said monoclonal antibody to a component of said εample aε a determination of MAGE-l in εaid sample.

6. The method of claim 5, wherein said monoclonal antibody is bound to a solid phase.

7. The method of claim 5, wherein said monoclonal antibody is labelled with a detectable label.

8. Isolated, MAGE-l tumor rejection antigen precursor.

9. The isolated MAGE-l tumor rejection antigen precursor of claim 8 , which is a glycoprotein having a molecular weight of about 46 kilodaltons as determined by SDS-PAGE.

10. The isolated MAGE-l tumor rejection antigen precursor of claim 8 , which iε a recombinantly produced protein having a molecular weight of about 34.3 kilodaltons as determined by SDS-PAGE.

11. Isolated protein consisting of amino acids 57-219 coded for by nucleotides 3931-4761 of the nucleotide sequence of SEQ I.D. NO. : 1.

12. Isolated peptide selected from the group consisting of:

SEQ ID NO: 2, SEQ ID NO: 3, and SEQ ID NO: 4.

13. Immunogenic composition comprising at least one isolated protein of claim 9 and an adjuvant.

14. Immunogenic composition comprising at least one isolated protein of claim 10 and an adjuvant.

15. Immunogenic composition comprising at least one iεolated protein of claim 11 and an adjuvant.

16. Immunogenic compoεition compriεing at leaεt one peptide of claim 12 and an adjuvant.